Artist: Trae Tha Truth Ft Mystikal, Tech N9ne and Brian Angel Song: All I Know Director: Philly Fly Boy Big Shouts To Philly For Permission To Upload This Video! Follow the artists at the links below! twitter.comtwitter.comtwitter.comtwitter.comtwitter.com Trae Tha Truth is one of the hardest working rappers in the game. After dropping the mixtapes Undisputed and 48 Hours as well as his album Street King in 2011, the ABN member releases visuals for “All That I Know” to get 2012 kicked off correctly. The Philly Fly Boy directed clip features Tech N9ne, Brian Angel of Day 26 and Cash Money’s newest signee Mystikal.